JB/T 6921-2004
Roots vacuum pump system (English Version)
- Standard No.
- JB/T 6921-2004
- Language
- Chinese, Available in English version
- Release Date
- 2004
- Published By
- Professional Standard - Machinery
- Status
- 2017-07
- Replace By
- JB/T 6921-2017
- Latest
- JB/T 6921-2017
- Replace
- JB/T 6921-1993
- Scope
- This standard specifies the type and basic parameters, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of Roots vacuum pump units with pumping speeds from 30L/s to 20000L/s. This standard applies to Roots vacuum pumps as main pumps or intermediate pumps, with slide valve vacuum pumps, rotary vane vacuum pumps, water ring vacuum pumps, oil ring vacuum pumps, water ring atmospheric jet pumps, air-cooled Roots vacuum pumps, and reciprocating vacuum pumps as front stages. A two-stage, three-stage or four-stage Roots vacuum pump unit composed of pumps.
JB/T 6921-2004 history
- 2017 JB/T 6921-2017 Roots vacuum pump unit
- 2004 JB/T 6921-2004 Roots vacuum pump system
- 1993 JB/T 6921-1993 Roots vacuum pump unit
